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Across 3. correspondence of gene and protein building block sequence 5. all of the DNA in a cell 6. a sequence of enzyme controlled reactions 8. without oxygen 10. translating codons from nucleic acids to amino acids 12. when oxygen is present in sufficient quantity the pyruvic acid generated by glycolysis can enter this pathway 13. the break down of lipids, proteins, and carbs by splitting a water molecule 17. single stranded and their nucleotides contain ribose instead of deoxyribose 21. correctly aligns amino acids 22. the breaking of glucose 23. promote chemical reactions by lowering activation energy 24. may be an ion of an element 25. a small organic molecule

Down 1. temporarily combine with portions of the substrate, forming an enzyme substrate complex 2. the breaking of bonds with water as a by product 4. holds information in the form of a genetic code 7. the break down of larger molecules to simpler ones 9. synthesized in a process called transcription 11. the portions of DNA that contain genetic information 14. the burning of glucose molecules 15. an enzyme will act only on a particular chemical 16. is the capacity to change or move matter; the ability to do work 18. the build up of larger molecules from smaller ones 19. the three nucleotides found in tRNA. The tRNA carries the amino acid to a correct position on a mRNA strand 20. a series of three base sequences